Class AbstractMedicalSweepRenderer

java.lang.Object

com.arbergashi.charts.render.BaseRenderer

com.arbergashi.charts.render.medical.AbstractMedicalSweepRenderer

All Implemented Interfaces:

ChartRenderer

Direct Known Subclasses:

CapnographyRenderer, ECGRenderer, EMGRenderer, EOGRenderer, IBPRenderer, NIRSRenderer, PPGRenderer

public abstract class AbstractMedicalSweepRenderer
extends BaseRenderer

Abstract base class for medical sweep renderers (ECG, PPG, IBP, NIRS). Eliminates redundancy and encapsulates sweep-erase logic.

Since:

2025-06-01

Version:

1.0.0

Author:

Arber Gashi

Field Summary

Fields

Modifier and Type	Field	Description
protected final Path2D.Double	renderPath
protected final double[]	sharedCoord

Fields inherited from class BaseRenderer

PIXEL_BUF, PIXEL_BUF4

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	AbstractMedicalSweepRenderer(Color color, float strokeWidth, int gapWidth)

Method Summary

Modifier and Type	Method	Description
protected void	drawData(Graphics2D g, ChartModel model, PlotContext context)	Implementation-specific drawing logic.
protected int	getChannelIndex()	Defaults to channel 0, can be overridden by subclasses.
String	getName()	Returns the renderer name used by legends and UI labels.
Optional<Integer>	getPointAt(Point2D pixel, ChartModel model, PlotContext context)	Returns the data index nearest to the given pixel coordinate, if supported.
protected Color	resolveWaveColor(ChartModel model, PlotContext context)
static void	setNameTranslator(Function<String,String> translator)	End users can set their own translation function here.

Methods inherited from class BaseRenderer

drawHighlightPoint, drawI18nLabel, drawLabel, getArc, getCachedFont, getCachedGradient, getCachedStroke, getCachedStroke, getCachedStroke, getCubicCurve, getEllipse, getId, getLayerIndex, getLegendColor, getLine, getPathCache, getRect, getRoundRectangle, getSeriesColor, getSeriesStroke, getTheme, getTooltipText, isLegendRequired, isMultiColor, pBuffer, pBuffer4, render, resolveTheme, seriesOrBase, setLayerIndex, setMultiColor, setTheme, setupQualityHints, themeAccent, themeAxisLabel, themeBackground, themeBearish, themeBullish, themeForeground, themeGrid, themeSeries

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface ChartRenderer

clearHover, createContext, getFocusValues, getPreferredYRange, renderEmptyState, supportsEmptyState

Field Details

renderPath

protected final Path2D.Double renderPath

sharedCoord

protected final double[] sharedCoord

Constructor Details

AbstractMedicalSweepRenderer

protected AbstractMedicalSweepRenderer(Color color,
 float strokeWidth,
 int gapWidth)

Method Details

setNameTranslator

public static void setNameTranslator(Function<String,String> translator)

End users can set their own translation function here. Example: AbstractMedicalSweepRenderer.setNameTranslator(key -> MyI18n.get(key));

drawData

protected void drawData(Graphics2D g,
 ChartModel model,
 PlotContext context)

Description copied from class: BaseRenderer

Implementation-specific drawing logic. Must follow Zero-Allocation rules.

Specified by:

drawData in class BaseRenderer

resolveWaveColor

protected Color resolveWaveColor(ChartModel model,
 PlotContext context)

getChannelIndex

protected int getChannelIndex()

Defaults to channel 0, can be overridden by subclasses.

getName

public String getName()

Description copied from class: BaseRenderer

Returns the renderer name used by legends and UI labels.

Specified by:

getName in interface ChartRenderer

Overrides:

getName in class BaseRenderer

Returns:

renderer name

getPointAt

public Optional<Integer> getPointAt(Point2D pixel,
 ChartModel model,
 PlotContext context)

Description copied from class: BaseRenderer

Returns the data index nearest to the given pixel coordinate, if supported.

Specified by:

getPointAt in interface ChartRenderer

Overrides:

getPointAt in class BaseRenderer

Parameters:

pixel - mouse/crosshair position in component coordinates

model - data model for this layer

context - current plot context

Returns:

optional point index